Finding the Fourth Proportional to 879,122,811.80, 1,318,684,217.70 and 224,072,571.80
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Solution
The fourth proportional to 879,122,811.80, 1,318,684,217.70 and 224,072,571.80 is: 336,108,857.70
Step by Step Solution
- Step 1: Write the proportion equation
879,122,811.80 : 1,318,684,217.70 = 224,072,571.80 : x - Step 2: Convert to fraction form
879,122,811.80/1,318,684,217.70 = 224,072,571.80/x - Step 3: Cross multiply
879,122,811.80x = 1,318,684,217.70 × 224,072,571.80 - Step 4: Simplify right side
879,122,811.80x = 295,480,964,052,110,080 - Step 5: Solve for x
x = 295,480,964,052,110,080/879,122,811.80 - Step 6: Final answer
x = 336,108,857.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.